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A. BALL.

GANG DRILLROGK GHANNIELING MACHINE. No. 392,399.

" PatentedlNov. 6, 1888.

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Patented Nov. 6, 1888.

A. BALL.

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WITNESSES.

UNITED STATES PATENT OFFICE.

ALBERT BALL, OF CLAREMONT, NEW HAMPSHIRE, ASSIGNOR TO THE SULLIVAN MACHINE COMPANY, OF SAME PLACE.

GANG-DRILL ROCK-CHANNELING MACHINE.'

SPECIFICATION forming part of Letters Patent No. 392,399, dated November 6, 1888.

Application filed May 10, 1887. Serial No. 237,740.

- To aZZ whom it may concern:

Vvating-screw and check-nut.

Be it known that l, ALBERT BALL, a citizen of the United States,`residing at Claremont, in the county of Sullivan and State of New Hampshire,haveinvented certain new and useful Improvements in Gang-Drill-Rock-Channeling Machines; and I dohereby declare the following to be afull, clear, and exact description of the invention, which will enable othersskilled in the art to which it appertains to make and use the same.

My invention relates to an improved method of constructing agang-drill rock-channeling car-frame, and in connection therewith of setting and securing an adjustable engine guideframe wherein the driving-engine and drills are to work, and of moving and securing the said engine upon its said guide-frame.

My object is to have such channeling carframe stiff and strong and as light as consistent therewith, and to have said guide-frame easily and quickly adjustable at any angle to either the plane of the cut or to the plane of the surface, to firmly secure it in such position, and to allow of the frame with contents being quickly transferred, if desired, from one end of the carframe to the other end, to

'quickly feed the drive-engine with its drills down as its work progresses, and to prevent back action of the engine on the feed-screw, and I claim to accomplish these things satisfactorily and with simplicity and economy by the mechanism illustrated in the accompanying drawings, in which- Figure l is an end view of, a machine in question without boiler and with the drill-engine and gang of drills in outline, and with a part of the projection of the car-frame broken away. Fig. 2 is a top view of the same, excepting that the track is omitted. Fig. 3 is a cross-sectional central view of the clamp, which is intended to form the pivotal bearing of the guide-frame on the bar which constitutes the frontof the machine-frame, and to secure it'thereto. Fig. 4: is a front view of the top end ofthe engine and drill frame B, with the engine broken away to show the ele- Fig. 5 is a scctional viewof the ratchet-wrench.

Similar letters refer to similar parts throughout the several views.

(No model.)

The car-frame is made by strongly bolting two lengths, A A, of angle-iron (so called) front and back of two strong iron castings, A A', each of the latter having heavy protuberances at one side, into which are fitted and secured the respective ends of a heavy round bar of iron or steel, C. Under the ends of thisframe are secured axles a, with wheels a arranged to fit the desired track.

B is the engine guide-frame,upon which the engine and its accompanying gang of drills are intended to feed up and down. It is secured to the front bar, C, as its bearing when at work, and upon this as a center it is swung.

D D is a combined swivel and clamp box, whereby the engine guide-frame B grasps the front bar,0. D' has its outer end turned off into a trunnion, which passes ,into and fits a round hole for the purpose through B.

d is a heavy washer-plate with a shouldertrunnion turned to the size of the trunnion D', to which it is secured by the screw c and by the screws c. These screws c hold together and tighten the clamp on the bar C, and B is thus held in position on the bar. ln addition to the screws c shown, there are four other screws like c', except that they do not extend into the frame B. By loosening the clamp the drill-frame B can thus be moved forward and back to any angle upon the bar G as a center, and by loosening the screws c o' it can be moved sidewise to any angle upon the trunnion formed by the shoulders of d and D as a center. The loosening and tightening of the screws c c', respectively, allow of and secure such changes. rlhere is an additional holder or a brace with reference to each of these movements of the drill-frame B, as follows: The brace in relation to the car-frame is made with a ball, E, and socket, F, joint at the top, with a screw-joint, H l, in the middle, and with a hinge-joint, J g, at the bottom, so that it can be lengthened or shortened and its point of direction readily changed. The socket has a tightening screw-bolt, f, whereby the ball can be held immovable. The female section of the screw is slotted on one side and provided with shoulders and a tightening screwbolt, i, and by tightening this screw-bolt t' the screw can be grasped firmly and prevented from further movement.

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The rounding-bar J, to which the brace is jointed, setsin slotted seats h 7L in the sides of the frame A, and is secured by screw-bolts.

The brace in relation to the lateral swing to the drill-frame consists of a bar, IC, which is held at its upper end by the screw-bolt fm, on which it can turn more or less freely, and at its lower end by a collar, L, which encircles the bar C and is tightened or loosened by the bolts l. This collar is made in two pieces.

To change the angle of the proposed channel to be cut, it is only necessary to move the top of the engine-frame B, as desired. To operate this, the screwbolts h g fi j and m Z are first loosened, then the bolts c c are loosened, and the engine and drill frame B is placed at the intended angle to the horizon, the screw II I of one brace being lengthencd or shortcned, as maybe necessary, and the corresponding effect as to the brace I( being obtained by forcing the collar L farther away or drawing it nearer to B. IVhen in position, the screwbolts can be quickly again tightened.

IIad it been desired to remove the gang of drills to the other side of the machine, instead of simply loosening the bolts Z, these would have been withdrawn,whereupon the bolts hh could have been lifted from the slots 7L L, the collar L swung to the other side of B, which could then have been pushed with the box D to the otherend of the bar C upon the bar C, and placed in its corresponding position on that side of the ear-frame.

In the process of channel-cutting, the engine, with its gang of' drills, needs to be moved down nearer to the surface after each time crossing the quarry until a depth is reached requiring longer drills, when the engine is moved up, the new drills put on, and the process repeated. In this feeding process I use a feed-screw, N, which has a plain shouldered bearing in the top piece, O, and passes through a screw seat or nut in the cnginecylinder frame I?, Fig. d. This screw is turned readily by a ratchetwreneh, It, (see Fig. 5,) of a form well known to the arts. Turning the screw one way feeds the engine up and reversing the motion feeds it down, the screw being held in its top bearing between collars.

In practical operation in the severe pounding which the drills have to do great strain comes on t-his feed-screw, and to avoid the strain and jar in part I have devised a screwset, S, Fig. 4, which, when the drill-engine is in place,is screwed down firmly upon the screwnut I? by throwing around the lever-arm s. This holds the screw and engine firmly in their then position and prevents all possible play and consequent wear and jar between the two.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is as follows:

l. In agang-drill rock-channelingmachine, the combination, with the car made with angle-iron side pieces and with cast-iron end pieces formed with hollow protuberanees, of

the engine guide-frame B, removably secured on said car and pivotally mounted upon and adapted to slide along the front of the same, for the purpose herein set forth, substantially as described.

2. In a gang-drill rock-elmnnelng machine, the combination, with the car provided with east-iron end pieces formed with hollow protuberances thereon, of the cylindrical metallic rod Gand engine guide-frame B, pivotally mounted on said rod and having lateral movement on the same, substantially as and for the purposes set forth.

3. In a gang-drill 1oekchanncling machine, the combination, with the car and engine guide-frame B, pivotally mounted on the same, ofthe lateral brace K and the adjustable rear braces, II I J, substantially as set forth.

4. In a gang-drill reeleehanneling machine, the combination, with the ear, rod C, and engine guide-frame B, of the clamp D D', made in sections fastened together by bolts and adapted to securely lock said engine guideframc to said cylindrical rod C, substantially as and for the purpose set forth.

5. In a gang-drill rock-channeling machine` the combination, with the machine-frame A and engine guide-frame B, pivotally attached to said machine-frame, of an adjustable brace connecting the two and provided at its upper end with a balLand-socketjoint, the socket of which being made in removable sections, substantially as described, and for the purposes Set forth.

6. In a gang-drill rock-channeling machine, the combination, with the machine-frame A and engine guide-frame B, pivotally attached to said machine-frame, of an adjustable brace connecting the twoand provided at its lower end with a removable hinge-joint and at its center with a screw-joint whose internallyscrew-threaded chamber can be tightened on the screw-threaded rod N, and thereby preventing any rotary movement of said rod, substantially as described, and for the purposes set forth.

7. In agang-driil rock-channeling machine, the combinati on,with an engine-frame, B, pivotally mounted on a metallic rod, C, of a bracing-iron, K, connecting the two and provided with a clamp, L, made in two parts and capable of tightly gripping the said rod C, which it encircles, substantially as described.

S. In a gang-drill rock-channcling machine, the combination, with an engine guide-frame, B, a feed-nut, I?, feed-screw N, top bearing, O, ratchet-wrench It, and locking set-screw S, all combined and arranged substantially as and for the purposes set forth.

In testimony whereof I affix my signature in presence of two witnesses.

ALBERT BALL.

Witnesses:

Gnoncn O. BALL, FRANK A. BALL.

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